|
|
 
|
|
Author
|
Topic: Film Projector on Castor Wheels?
|
|
|
Carsten Kurz
Film God
Posts: 4340
From: Cologne, NRW, Germany
Registered: Aug 2009
|
posted 04-13-2018 08:49 AM
It may work for large wheels, and with brakes on every single one. In general, tracks are used for stationary applications. For an outdoor screening, you have to adjust the image every time anyway, so I guess it's no big deal. I would still prefer to use the wheels only for transport, and then support the wheeled transport platform with something rigid like a few bricks or something. Certainly also depends a bit on the type of machine, weight, film transport/tension, etc.
- Carsten
| IP: Logged
|
|
|
|
|
|
|
|
|
|
Frank Angel
Film God
Posts: 5305
From: Brooklyn NY USA
Registered: Dec 1999
|
posted 04-21-2018 05:53 AM
Done just that very thing in a unique setup where the back wall of the booth faced an outdoor court yard where we had stadium- type seating with small tables for food, a building about two hundred feet away had a wall were we were able to setup a screen with moving mask and screen curtain no less. Luckily, the indoor theater throw was close to that of the outdoor venue so we were able to get away with the same lenses for both operations.
We had two Century JJs in changeover; both on dolly's designed for their weight and with big rubber wheels -- I don't recall if they were the locking kind or not. I don't thing so because to align everything, we had metal feet on all 4 corners of the platforms that lined up with stage screw plugs in the floor both at the outdoor venue ports and at the indoor theatre ports. You aligned the dolly to the stage plugs and just used the winged screws to clamp them down. Once they were screwed in place, they were pretty immobile.
Electrically all the controls -- masking, curtains, lights -- for both theatres connected via two big military-style, screw-together multi-contact plugs and sockets on two imbeciles as well as power cables and interconnection cables between the projectors for change-over. They aligned almost perfectly every time.
A few times the outdoor theatre got rained on in the middle of a show and the audience was ushered back into the indoor theatre. We were able to swing both projectors around and aim them at the indoor booth ports, clamp them down and restart the show within a 10 - 15 minutes turn-around...literally. We waited longer for the audience to get settled (no one would leave their food outside) than it took to roll the projectors, replug and be ready to restart the show, even with backing up footage & rethreading the active projector.
Use this:
Threaded plug goes in the floor, L-bracket with hole that's attached to the dolly platform is anchored to the floor with the wing screw. We had them on all four corners of the projector platforms but two would probably work just as well to align and steady everything. We also use these on our fly screen frame as well; it aligns the screen correctly in position on the stage floor every time.
| IP: Logged
|
|
|
|
|
|
|
|
|
|
All times are Central (GMT -6:00)
|
|
Powered by Infopop Corporation
UBB.classicTM
6.3.1.2
The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion
and agrees to release the authors from any and all liability.
|
Home
Printer-friendly view of this topic